Home / 10,176.42-15,263.05-2,781.46

Finding the Fourth Proportional to 10,176.42, 15,263.05 and 2,781.46

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Solution

The fourth proportional to 10,176.42, 15,263.05 and 2,781.46 is: 4,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,176.42 : 15,263.05 = 2,781.46 : x
  2. Step 2: Convert to fraction form
    10,176.42/15,263.05 = 2,781.46/x
  3. Step 3: Cross multiply
    10,176.42x = 15,263.05 × 2,781.46
  4. Step 4: Simplify right side
    10,176.42x = 42,453,563.05
  5. Step 5: Solve for x
    x = 42,453,563.05/10,176.42
  6. Step 6: Final answer
    x = 4,171.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.